IIT JEE Practice Question and Answer

Q: On her deathbed, a grand mother called upon his three grand sons and told them to distribute all her assets worth Rs. 52,500 in the ratio of 1/35 : 1/21 : 1/15 amongst themselves. Find the smallest share amongst the three portions ? 2010 0

  • 1
    Rs. 5422
    Correct
    Wrong
  • 2
    Rs. 10,500
    Correct
    Wrong
  • 3
    Rs. 12,800
    Correct
    Wrong
  • 4
    Rs. 15,000
    Correct
    Wrong
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Answer : 2. "Rs. 10,500"
Explanation :

Answer: B) Rs. 10,500 Explanation: The ratio of distribution should be: 21 x 15 : 15 x 35 : 35 x 21= 315 : 525 : 735 = 3 : 5 : 7The smallest share will be of worth: 3/15 x 52,500 = Rs. 10,500

Q: States earn maximum revenue through 2009 0

  • 1
    excise duties
    Correct
    Wrong
  • 2
    commercial taxes
    Correct
    Wrong
  • 3
    land revenue
    Correct
    Wrong
  • 4
    custom revenue
    Correct
    Wrong
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Answer : 2. "commercial taxes"
Explanation :

Answer: B) commercial taxes Explanation:

Q: Who makes it has no need of it. What is it? 2009 0

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Answer :
Explanation :

A Coffin.

Q: What is at the end of a rainbow? 2008 0

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Answer :
Explanation :

The logical answer for a puzzle is that the letter 'W'.   A rainbow is a spectrum of light that appears in the sky when sunlight is refracted through raindrops or other drops of moisture in the Earth's atmosphere. They have inspired much popular folklore, including the belief that a leprechaun can be found with a pot of gold at the end of a rainbow.

Q: Alcohol first impairs your 2008 0

  • 1
    hearing skills
    Correct
    Wrong
  • 2
    colour recognition
    Correct
    Wrong
  • 3
    judgement
    Correct
    Wrong
  • 4
    heart
    Correct
    Wrong
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Answer : 3. "judgement"
Explanation :

Answer: C) judgement Explanation: The reason why drunk people acts like stupids is when they drink, especially if they drink a lot, first their brain becomes impaired by such large quantities of alcohol that it cannot operate properly. So they cannot judge anything.   Hence, Alcohol first impairs your Judgement.

Q: Antonym for Durable 2008 0

  • 1
    Pressure
    Correct
    Wrong
  • 2
    Flimsy
    Correct
    Wrong
  • 3
    Hard-wearing
    Correct
    Wrong
  • 4
    Withstand
    Correct
    Wrong
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Answer : 2. "Flimsy"
Explanation :

Answer: B) Flimsy Explanation: Durable means able to withstand wear, pressure.   Antonyms for Durable are Delicate, Flimsy, Short-lived.

Q: A motorboat takes half time to cover a certain distance downstream than upstream. What is the ratio between rate of current and rate of boat in still water? 2008 0

  • 1
    1 : 3
    Correct
    Wrong
  • 2
    3 : 2
    Correct
    Wrong
  • 3
    2 : 3
    Correct
    Wrong
  • 4
    3 : 1
    Correct
    Wrong
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Answer : 1. "1 : 3"
Explanation :

Answer: A) 1 : 3 Explanation: Let the speed of the boat in still water is 'w' Speed of the current is 'c' Let the distance between two places is 'd' According to the question, motorboat takes half time to cover a certain distance downstream than upstream. dw+c = 12dw-c => 2w - 2c = w + c => w = 3c => c : w = 1 : 3   Hence, the ratio between rate of current(c) and rate of boat in still water(w) = 1 : 3

Q: The ratio of present ages of Hema and Chinnu is 13:17. Four years ago the ratio of their ages was 11:15. What will be the ratio of their ages six years hence ? 2008 0

  • 1
    3 : 7
    Correct
    Wrong
  • 2
    7 : 9
    Correct
    Wrong
  • 3
    4 : 5
    Correct
    Wrong
  • 4
    1 : 3
    Correct
    Wrong
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Answer : 3. "4 : 5"
Explanation :

Answer: C) 4 : 5 Explanation: Let their present ages be 13x and 17x.Then, 13x-4/17x-4 = 11/15. Solving this, we get x = 2.Required ratio = 13x2 + 6/17x2 + 6 = 32/40 = 4/5.

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